model of respiratory system -class 5

 Making model of respiratory system: The students will make model of respiratory
system as explained below:
Insert straws into balloons and tape together at the top. These are bronchi and
lungs. Insert these through open bottom of modified 2-liter soda bottle straw end
first and bring ends of straws up through the neck of the bottle. Close the lid of the
bottle which is having a hole in it

for the fitting of straws. Tape
closed and place over top of two
straws. This will be the trachea.
Stretch rubber balloon over bottom
end of bottle and use the rubber
band to hold it in place. This will
serve as the diaphragm. Grasp
bottom of the plastic bag and then
pull down and push up. Watch as
the "lungs" expand and contract as
you do this. Students may even
bend "trachea" and "bronchi" overso that the air supply is cut off and watch as nothing happens when the
"diaphragm" is manipulated.

Eat Right Eat Healthy-project for class IV-B

  

Interesting facts on flowers

Bluebell Flower

Flowers have captured human imagination since ancient times primarily because they are beautiful (mostly) and produce various kinds of pleasing smells (with a few exceptions). Different flowers are associated with different symbolism and are used for different purposes.  Given below are some little known and strange fact about some rare and common flowers.

• There are more than 2,50,000 species of flowering plants in the world.

• Titan Arum are the world’s largest flower and is almost 10 feet in height. Due to its horrible smell of rotten flesh, it is also known as corpse flower.

Tulip Bulbs

• In 17^th Century Holland, Tulip bulbs were more valuable than gold! The flower symbolized immortality, life and love. In most recipes, Onions can be replaced with Tulip Bulbs.

• Ancient civilizations burned Astor leaves to ward off evil spirits.

• Ancient Egyptians considered lotus a sacred flower and used them in burial rituals. The interesting thing about lotus is that even though it blooms in swamps and wetlands, it can lie dormant for years during times of draught and bloom again when water returns. The Egyptians thought this as symbolizing the resurrection of life.

• The fossil of world’s oldest known flower was discovered by scientists in 2002, in Northeast China. The flower belonging to the genus Archaefructus bloomed around 125 million years ago and resembled a water lily.

• In earlier times the juice from bluebell flowers was used to make glue.

Foxglove

• Foxglove is a kind of pink tubular flower which derived its name from old English belief that foxes slipped into these flowers to sneak up on their prey!

• Dandelions look like weeds, but the flowers and leaves are a good source of vitamins A and C, iron, calcium and potassium. One cup of dandelion greens provides 7,000-13,000 I.U. of vitamin A.

Moon Flower

• As the name suggests, Moon flowers bloom only at night closing during the day.

Gas Plant

• Gas plants produce a clear gas on humid warn nights. It is believed tha gas can be ignited with a matchstick.

Angelica

• Angelica was used in Europe for hundreds of years as a cure for everything from the bubonic plague to indigestion. It was thought to ward off evil spirits.

Agave Plant

• The Agave, also known as the century plant spends many years without growing any flowers, after which it grows one single bloom and dies.

• Bamboos produce flowers once every few years. And when they do, all flowers of the same species bloom at exactly the same time.

• Interflora is the world’s largest and most recognized flower delivery service, supported by a network of 50,000 florists worldwide, delivering to approximately 150 countries.

operation-RAAHAT

operation-RAAHAT

SKELETAL SYSTEM

Dear students it's time you know about the bones in your body.

AMAZN' MONKEYS

The Pygmy Marmoset is the world’s smallest monkey. It measures 117-159 millimeters (four and a half to six inches) in length and weighs 85 to 140 grams (three to five ounces). The pygmy marmoset uses special types of communication to give alerts and warning to its family members. These include chemical, vocal, and physical types of communication. A trill is used to communicate over long distance. A sharp warning whistle and a clicking sound signal danger to their family members. A J-call is a series of fast notes repeated by the caller and is used at medium distances.

HERBS

IDENTIFY THESE COMMON INSECTS

A           B

       C          D

 E F
       G              H

SEE ANSWERS IN THE NEXT POST

INSECTS REVISION

INSECTS

Across
1. Stinging insect
6. Disease spread by housefly
8. Breeding of silk moth for getting silk
9. Mosquito which spreads malaria
Down
2. Transfer of pollen grains from one flower to another
3. Insect which feeds on wood
4. Insects which causes bubonic plague
5. Mosquito which spreads malaria
7. Breeding of bees for getting honey

Anti-Cancer Fruits

FLOWERS AROUND US

My Animoto Video
The photographs in this video have been clicked by Sahil Sood of CLASS-IV-B.

Flowers in bloom

My Animoto Video

RESPIRATORY SYSTEM-CLASS - V

Now answer the following quiz:

1. What is other name of windpipe?

2.Name the gas which we inhale.

3.Which lung is smaller in size-left or right?

4.Why do we have hair in our nose?

5.Do the lungs have any muscles in them?

6.Why do we breathe heavily after running?

7.Name the part in the lungs from where the gaseous exchange takes place.

8.Name the biggest muscle.

THE GREAT BANYAN TREE IN BOTANICAL GARDENS , KOLKATA

Observe the aerial roots of the banyan tree

MANGROVES

Mangroves act as barriers against storms,cyclones and flood destruction.They are found in coastal areas like Goa ,Sunderbans(West Bengal) etc.

ALL ABOUT SOLAR SYSTEM

Reena

S E T L N A J O S N A M M U R A N U S N T V O T S I N E P T U N E O R O Y R L I T D R N N T T T S A T K S A U A A U F R M E T S Y S R A L O S M R F N S N W T P P M E S A E R S H E A A F A S E R M E R C U R Y R R Y E T E T I L L E T A S C I Y X A L A G H T W T A X A E S P U S O P D A P L
solar system planets sun milky way moon satellite mars venus earth mercury jupiter saturn uranus neptune pluto dwarf planet galaxy stars

try out this interesting word search game.......enjoy!